蒂娜：我有看到你的产品示范。这组键盘真令人惊奇。

Tina: I saw your demonstration. This keyboard is amazing.

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普遍运用的手段有附在商品上的赠券、各种抽奖活动、游戏、竞赛、降价销售、产品示范、各种奖励、样品试验以及钱款返还承诺等等。

The common ones used are coupons, sweepstakes, games, contests, price-offs, demonstrations, premiums, samples, and money refund offers.

youdao

作为示范，家乐氏在它最畅销的产品中做了一些去掉大部分盐的。

As a demonstration, Kellogg prepared some of its biggest sellers with most of the salt removed.

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